20506954

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21317}}^1$

素因数の和:21369

約数の個数: 16

約数和(自身を含む): 34023528

約数和(自身を除く): 13516574

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 21317, 42634, 277121, 554242, 788729, 1577458, 10253477, 20506954]

約数ペア:

[(1, 20506954), (2, 10253477), (13, 1577458), (26, 788729), (37, 554242), (74, 277121), (481, 42634), (962, 21317)]